Crash Base Rates for Intersections in Ohio

US Transportation Collection2007PDFTech ReportPant, Prahlad D.Kashayi, NagarajuUniversity of Cincinnati. Department of Civil and Environmental EngineeringOhio. Department of TransportationUnited States. Department of Transportation. Federal Highway AdministrationUniversity of Cincinnati. Dept. of Civil and Environmental EngineeringOhioCrashesIntersectionsGround transportation crashesHighway factors in crashesCrash dataCrash ratesAutomatic incident detectionCrash base rateAccident base rateCrash densityAccident densityAccident rateFHWA/OH-2007/0313416620397The primary objective of this study is to develop a set of mathematical models to estimate base crash rates for intersections in Ohio. The models will estimate the incremental changes in the dependent variables (crash rate for different types of crashes) resulting from changes in the independent variables (including geometric features, operational controls, and environmental conditions). Crash data and inventory data available with ODOT will be used to develop and validate the models. This methodology used in this study is similar to those successfully used by the previous research studies, \u201cRational Schedule of Base Accident Rates for Rural Highways in Ohio- Phase I and II.\u201d136